28640913

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{10739}}^1$

素因数の和:10876

約数の個数: 16

約数和(自身を含む): 43991040

約数和(自身を除く): 15350127

約数列:

[1, 3, 7, 21, 127, 381, 889, 2667, 10739, 32217, 75173, 225519, 1363853, 4091559, 9546971, 28640913]

約数ペア:

[(1, 28640913), (3, 9546971), (7, 4091559), (21, 1363853), (127, 225519), (381, 75173), (889, 32217), (2667, 10739)]